We, the Muslims, are Prophet Jesus' true followers; we are followers of all the Prophets. All of the Prophets are Muslims who worshipped God alone and did not permit to worship other than God; as such the Muslims are their true followers.
Prophet Jesus' followers were like us: they used to worship God alone. They did not associate partners with God, and they said that Jesus is his slave and Prophet. They did not say that Jesus is a part of God or that Jesus forgives sins.
We rejoice in the birth of Prophet Jesus. All the Prophets are sent as mercy to mankind. If we knew the date of the birth of Prophet Jesus we would have celebrated his birth in a permissible and beneficial way but his birth date is not confirmed.
May peace be on Prophet Jesus and all the Prophets.